TM44 Air Conditioning Inspections

All air conditioning systems with an effective rated output of more than 12 kW must be regularly inspected by an energy assessor. The inspections must be no more than five years apart. The regulations require the first inspection of the affected air conditioning systems to be carried out as follows:

  • for all systems first put into service on or after 1st January 2008, the first inspection must have taken place within five years of the date when the system was first put into service
  • for other air conditioning systems, where the effective rated output is more than 250 kW the first inspection must have taken place by 4th January 2009
  • for other air conditioning systems, where the effective rated output is more than 12 kW the first inspection must have taken place by 4th January 2011

If you are legally responsible for carrying out the inspection and do not yet have a report, you could face a £300 fine on each building that you occupy and control.

The legal responsibility to have the inspection carried out lies with the person who controls the technical functioning of the system. For multi-let buildings, such as offices and shopping centres, this is usually the tenant’s responsibility.

*An air-conditioning system refers to any AC system where refrigeration is used to provide for the comfort cooling of the occupants of the space. Separate refrigeration which is not for the comfort of the occupants such as process applications, Computer servers, cold stores, beer cellars in pubs, refrigerated counters etc. will not need a TM44 report.

If you would like to discuss any of the above please contact plymCo at info@plymco.co.uk.